David R. Cosper

Person

Downers Grove, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Recycling of xerographic waste paper using organic particulates
- Patent number 5,441,601
- Issue date Aug 15, 1995
- Nalco Chemical Company
- David R. Cosper
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cationic anionic polyelectrolytes for enhancing the freeness of pap...
- Patent number 5,423,946
- Issue date Jun 13, 1995
- Nalco Chemical Company
- Jawed M. Sarkar
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Recycling of xerographic waste paper using organic particulates
- Patent number 5,405,495
- Issue date Apr 11, 1995
- Nalco Chemical Company
- David R. Cosper
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Ethylene oxide/propylene oxide block copolymers as green binders fo...
- Patent number 5,324,770
- Issue date Jun 28, 1994
- Nalco Chemical Company
- David R. Cosper
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for preparing a ceramic oxide material
- Patent number 5,266,243
- Issue date Nov 30, 1993
- James F. Kneller
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Application of enzymes and flocculants for enhancing the freeness o...
- Patent number 5,169,497
- Issue date Dec 8, 1992
- Nalco Chemical Company
- Jawed M. Sarkar
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Morpholinohexose reductone as an oxygen scavenger
- Patent number 4,734,258
- Issue date Mar 29, 1988
- Nalco Chemical Company
- David R. Cosper
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Aqueous hydrotrope solutions for paint detackifiers
- Patent number 4,554,026
- Issue date Nov 19, 1985
- Nalco Chemical Company
- David R. Cosper
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hydrotropes and uses thereof
- Patent number 4,523,932
- Issue date Jun 18, 1985
- Nalco Chemical Company
- David R. Cosper
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hydrotropes and uses thereof
- Patent number 4,444,573
- Issue date Apr 24, 1984
- Nalco Chemical Company
- David R. Cosper
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Additive for felted cellulose fibers
- Patent number 4,432,834
- Issue date Feb 21, 1984
- Nalco Chemical Company
- Joyce M. Whitfield
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp refining process and additive therefor
- Patent number 4,383,889
- Issue date May 17, 1983
- Nalco Chemical Company
- James A. Hyde
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Scrubbing media for removing volatile organic material from paint s...
- Patent number 4,378,235
- Issue date Mar 29, 1983
- Nalco Chemical Company
- David R. Cosper
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Use of additives in pulp bleaching processes to preserve pulp strength
- Patent number 4,298,428
- Issue date Nov 3, 1981
- Nalco Chemical Company
- Michael D. Breslin
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of reducing soluble starch in broke repulping using a dual p...
- Patent number 4,268,352
- Issue date May 19, 1981
- Nalco Chemical Company
- David R. Cosper
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Use of polyacrylic acid in pulp bleaching processes to preserve pul...
- Patent number 4,255,233
- Issue date Mar 10, 1981
- Nalco Chemical Company
- Dominic S. Rende
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Use of thiourea dioxide in pulp bleaching processes to preserve pul...
- Patent number 4,244,780
- Issue date Jan 13, 1981
- Nalco Chemical Company
- Dominic S. Rende
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Accelerated process for causticization of Kraft green liquor
- Patent number 4,159,922
- Issue date Jul 3, 1979
- Nalco Chemical Company
- David R. Cosper
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Glycidaldehyde modified cationic polyacrylamide polymers used in paper
- Patent number 4,135,969
- Issue date Jan 23, 1979
- Nalco Chemical Company
- David R. Cosper
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

David R. Cosper

Person

Patents Grantslast 30 patents

Recycling of xerographic waste paper using organic particulates

Cationic anionic polyelectrolytes for enhancing the freeness of pap...

Recycling of xerographic waste paper using organic particulates

Ethylene oxide/propylene oxide block copolymers as green binders fo...

Method for preparing a ceramic oxide material

Application of enzymes and flocculants for enhancing the freeness o...

Morpholinohexose reductone as an oxygen scavenger

Aqueous hydrotrope solutions for paint detackifiers

Hydrotropes and uses thereof

Hydrotropes and uses thereof

Additive for felted cellulose fibers

Pulp refining process and additive therefor

Scrubbing media for removing volatile organic material from paint s...

Use of additives in pulp bleaching processes to preserve pulp strength

Method of reducing soluble starch in broke repulping using a dual p...

Use of polyacrylic acid in pulp bleaching processes to preserve pul...

Use of thiourea dioxide in pulp bleaching processes to preserve pul...

Accelerated process for causticization of Kraft green liquor

Glycidaldehyde modified cationic polyacrylamide polymers used in paper